December 14th, 2005
Freezing Light
Abstract:
Physicist Matt Sellars has found a way to hit the brakes on light, slowing a speeding laser pulse and capturing it inside a crystal. Sellars and his research team at the Laser Physics Center at the Australian National University in Canberra, Australia, managed to slow the laser light down from 670 million miles an hour to a mere 670 miles an hour — about the speed of a bullet being fired from a gun — before stopping it altogether.
"It's quite a bit faster than you can drive a car, but… we now have the ability to hold it for seconds at this stage and possibly longer," Sellars explains. That's longer than ever before, and long enough to be able to use light for quantum computing. (With Video)
Source:
sciencentral.com
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